Shuttle



C. SCHAUM SHUTTLE Filed Jan. lO. 1925 INVENTQR 'ATroRNEYS- iars. Wwe/aie,

Patented Aug. V25, 1925.

UNITED STATES CAB/L SCHAUM, 0F PHILADELPHIA., PENNSYLVANIA, ASSIGNOR TO FLETCHER WORKS,

INCORPORATED, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION 0F PENN- SYLVANIA.

SHUTTLE.

Application filed January 10, 1925.

To all whomz may concern:

Be it known that I, CARL SGHAUM, a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Improvement .in Shuttles, of Iwhich the following is a. specilication.

My invention relates to an improvement in loom shuttles and has for an object the provision of an improved construction whereby certain existing defects in shuttle construction may be eliminated.

In shuttle structures it is always essential that the shuttles run or slide freely, that is to say, it is desirable that the shuttles be so constructed that they will not bind in their bearings. To this end therefore, I have so constructed my improved shuttle that an eXtra bearing .is provided therefor to prevent tipping or binding of the shuttle.

It is desirable also in shuttle construction to provide the shuttle with as large a quill or cop as possible in order that the loom may not have to be stopped frequently for refilling the shuttle. The size of the shuttle, however, can not be increased appreciahly inasmuch as the size is controlled at the back of the shuttle by vthe reed, and above and below by the shed of the warp. To this end therefore I have improved the construction of both the quill and cop type in such a manner that the approximate maximum is obtained in the size of the quill and the cop.

In the accompanying drawings,

Fig. 1 is a section through a shuttle constructed in accordance with my invention;

Fig. 2 is a bottom plan view of the shuttle of Fig. 1;

Fig. 3 is an elevational view of a cop shuttle constructed in accordance with my invention;

Fig. 4 is a section on the line 4--4 of F ig. 3; and

Fig. 5 is a section on the line 55 of Fig. 3.

Referring to the drawings in det-ail, 1 designates a shuttle of the quill type provided in the rear with a quill chamber 2 in which is located a quill 3 and retarding or tensioning mechanism 4. This tensioning mechanism may be of any usual construction.

Serial No. 1,526.

The thread from the quill 3 is passed through a conduit or passageway 5 provided in the shuttle for that purpose, this passageway or conduit leading from the quill chamber to the bow 6 of the shuttle where I provide tensioning devices 7, consisting of two rings at opposite ends of the tension chamber 8, each ring being attached to a coil spring 9 anchored to the shuttle. The thread is passed out of the shuttle in the usual way through eye 10.

'Ihe shuttle rack 11 by which the shuttle is driven by pinions 12 is located intermediate the quill 3 and bow 6, that part of the shuttle at the rear ofthe rack being left free for the reception of the quill 3. This space in the prior shuttle structures is taken up by the rack. It will be seen, therefore, that my improved construction, without increasing the size of the shuttle reariwardly which is limited by the reed, and without increasing the thickness of the shuttle which is limited by the shed of the warp, permits of the use of a much larger quill than it is possible to use with present structures.

The shuttle is provided above the rack with guide 13, and is guided in the shuttle block at the rear both top and bottom as indica-ted at 14 and 15. By supporting the shuttle both front and rear, tilting of the same in its runway is prevented, thereby reducing the likelihood of amming and sticking of the shuttle.

In Figs. 3, 4 and 5 I have shown my invention applied to a shuttle of the cop type. This improved shuttle, like the quill shuttle just described is so constructed as to permit of the employment of a much larger cop than possible in cop shuttles as heretofore constructed.

Referring to Figs. 3, 4 and 5 in detail, 1 designates a shuttle of the cop type provided at the rear with cop chamber 2 for receiving the cop (not shown). The cop is retained in place by spring arm 16. The rack 11 through which the shuttle is driven by pinion 12 is located adjacent the front or what is commonly the bow of the shuttle. The underside 17 of the shuttle, that is to say the face of the shuttle in which the rack is located has a fairly large bearing surface on the rail 18, and the front of the shuttle is cut back as indicated at 19 to provide a shoulder 2O co-operating` with the member 2l of the shuttle block. The shuttle is also guided at the rear by guide located so as to engage the` upper side of the shuttle. it will be seen, therefore, that the shuttle is so mounted that tilting` et the saine in its runways is prevented thereby minimizing likelihood ot the shuttle jamming.

rlhe shuttle just described, it will be obvious, is capable of takingT a inuch larger cop than possible with cop shuttles as now constructed, and without necessitating an appreciable increase in the size ot the shuttle.

lWhile l havel described two speoilic einbodiinents ot my invention it is to be understood that changes may be made in the details thereof within the purview of the invention.

l. A shuttle coi rising a, cop or quill receiving chamber the rear, a rech 'for driving the shuttle interrgiediaie said chainber and the front uit the shuttle, and a guide for the shuttle rearwardly ot said chamber.

2. i shuttle comprising a rack and guide tor the shuttle and a cop or quill receiving chamber, said racl: and guide being positioned in the shuttle forward of the sa'd chamber, and a guide for the shuttle rearwardly of said rack.

3. A shuttle comprising thread guiding and tensioning means, a quill receiving chamber, thread conduits or passageways extending through the shuttle from the quill chamber to the guiding and tensioning` means, a rack for operatingthe shuttle intermediate the said chainber and said thread tensioning and guiding ineans, and a guide Yfor the shuttle rearwardly of said quillreceiving chamber.

a. A shuttle provided with a support for the rear thereot and with al rack adjacent the front ot the shuttle and forward of said support by which the forward portion ot the shuttle is supported.

A shuttle provided with a quill-reCeiV in;l cuaniber, a rack Yfor the shuttle forward oit said quill chamber, a guide for the shuttle above said rack and guiding ineans for the top and bottoni ot the rear of the shuttle.

G. il shuttle provided with a quill-receiving chamber, a rack tor the shuttle forward aid chainber, and a guide for the shuttle ot s rearwardly ot said chamber.

A shuttle provided with a thread receiving; chamber, a rack for the shuttle forward of and below said chamber a O'uide for n a C a the shuttle above said rack, and a guide tor the shuttle eno'aeino the shuttle on its e; :n :a unoer race and to the rear oI said chamber.

ihis specification signed this 5rd day of Beceinber 1924i.

CARL SCHAUM. 

